This is a debate that was conducted on 25 April 2009 between TurretinFan and William Albrecht (aka GNRHead) on the topic of the Veneration of Mary and its Biblical Support (or lack thereof).
At some later point I would like to provide some further comments on this debate. For now, however, here it is for your listening pleasure. It is in five parts on YouTube, but hopefully the "playlist" feature will permit you to play them sequentially.
UPDATE: Lane has posted the entire debate as a single YouTube video here (link).